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प्रश्न
What is isobar? Give an example.
उत्तर
Isobars are the atoms of different elements having the same mass number A, but different atomic number Z.
For example: \[\ce{_16^40S, _17^40Cl, _18^40Ar, _19^40K, and _20^40Ca}\] are isobars having same mass number 40 and different atomic number.
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